Derivatives of 3-aminocarbonyl-2-oxazolidinone and their process of preparation

ABSTRACT

in which R4 is H or phenyl; R is alkyl or alkenyl having from 1 to 4 carbon atoms; and R1, R2 and R3 are hydrogen, methyl or halogen. The compound is formed by reacting an isocyanate   with an oxazolidinone. The compounds possess hypnotic, anticonvulsive, myorelaxant, antidepressive, antiinflammatory, anxiolytic and analgesic properties. A compound of the formula

United States Patent [191 Fauran et al.

( Aug. 5, 1975 DERIVATIVES OF 3-AMINOCARBONYL-Z-OXAZOLIDINONE AND THEIR PROCESS OF PREPARATION [75] Inventors: Claude P. Fauran; Colette A.

Douzon. both of Paris; Gerard J. Huguet, Malesherbes; Guy M. Raynaud. Paris; Claude J. Gouret, Meudon. all of France [73] Assignee: Delalande S.A., Courbevoie. France [22] Filed: Mar. 23, 1973 [2]] Appl, No.: 344.359

OTHER PUBLICATIONS Close, W. J. J. Am, Chem. Soc. 73. 95-98 (1951 Primary Erumincr-Donald G. Daus AAX/AIUH! Llruminvr-Raymond V. Rush Almrnc), Agent. m FirmW0OdhamS. Blanchard and Flynn [57] ABSTRACT A compound of the formula in which R is H or phenyl;

R is alkyl or alkenyl having from I to 4 carbon atoms; and R, R and R are hydrogen. methyl or halogen.

The compound is formed by reacting an isocyanate with an oxazolidinonc. The compounds possess hypnotie. anti-convulsive, myorelaxant, antidepressive. antiinflammatory, anxiolytic and analgesic properties.

6 Claims, N0 Drawings DERIVATIVES ()F B-AMINUCARIH)NYI.-Z-()XAZ()LIDIN()NE AND THEIR PROCESS OF PREPARATION The following preparations are gi\ en by way of nonlimitative examples to illustrate the invention.

EXAMPLE I CROSS-REFERENCE TO RELATED APPLICATION 3-( nprop vlaminocarhonyl )-5-phenyl-2-oxazolidinone This application is a continuation-impart of our co- (Codc pending application Scr No. 127 filed 43 Gramsof5-phenyLZ-oxazolidinone and 100ml of l97l now US. Put N .7S4.Utll). propyl isocyanate are introduced into a reaction vessel This invention relates to novel derivatives of 3 under pressure. The mixture is heated with agitation for aminocarhon l-Z-oxa/olidinonc. 1 hour at 140C. Al'ter cooling, the product obtained is l'hc compounds according to the invention have the dissolved in l5l) ml ofahsolute ethanol and the mixture formula; is boiled for l hour. After removal of the alcohol. an R R oily residue is obtained which is purified by distillation. I4 I; The propylurethane layer (boiling point 8UC under H c c R 2 mmHg) is removed and the desired product is then 2 I I 2 recovered.

R NH C N O c R Boiling point 180C under 0.04 mmHg 3 Melting point C Yield 90% 0 Empirical formula cm m a ri in which: Elementary analysis C H l lN7 C11 lit l '2' 62.89 6.50 8 hydrltgcfl P U Fiiuii a /i 63.07 6.48 11.08 R is alkyl or alkenyl having 1 to 4 carhon atoms; and

q R R: and R are hydrogen. methyl or halogen. I EXAMPLE The process lor preparing the compounds according 3 l i b l 5 5 di h 1-2 to the invention consists in reacting an isocyanate of Oxazolidinone (Code No 692-) thformula:

k 60 Grams of 5,5-diphenyl-2-oxazolidmone and 60 ml R N(| i 30 of propyl isocyanatc are introduced into a reaction veso sel under pressure. The mixture is heated at l 70C with agitatlon for 1 hour. After cooling, the product 0b in which R has the same significance as in formula (I), tamed i5 "filled i h 2 0 ml Of ethanol with heating. with an oxa/olidinone ol' the formula: Th9 Product crysmulzgs and i5 Purified y recrysmlll' R1 Zation in 96 alcohol.

4 Melting point 89C H c R Yield 749'! i I 2 Empirical fomiula C bl l QO Elementar analysis C H N HN O (h Calculated '4 70.35 6.32 M14 C/ Found "/1 70.15 (mlo 8.73

II R O 3 The compounds listed in the following tables I. ll and in which R R R and R;, have the same significance been P p in accordance with the as in formula (I). tion. 7

Table l H a H c 2 R- NH C N 0 ll C R 0 3 R,=R. .=R;.=H

Melting l-lementary analysis i Molecular Yield point calculated i found c Table V ode Dose administered Percentage No tmgikgflfll inhibition rats mice (MIQS Ktll) 9t) (M250 Joli 7o V3) llll) lUU nwjho 4m so 4lltl llll) ()ltl 3H0 9U Ill) 50 ml 1 151) Ill 13H U Ill Antidepressive properties The compounds offormula (l) inhibit. when administered by oral means. in rats. gastric ulcerations and ptosis and. in mice, hypothermia and ptosis, produced by the administration of reserpine.

By way of example, the results obtained with a certain number of compounds of formula (I) are listed in the following Table \"l:

Table V] Reduction of (ode Dose Animal (iastric Palpebral H \po No administered treated ulcerations ptosis thcrmia f1) 1 i 75 mgi'kglH) mouse 4"; lil) mgfkgili) rat 4H! 55'! mouse 4(I'r' 7H2) llK) mglkg/PU Tltl (35 ml 7! 175 lHU mgflltgi'fl) rat 40%} W07? ll (l mgikgiPO rat 55"? By way of example. the results obtained with a certain number of compounds of formula (ll are listed in the following Table Vll:

Table Vll (.ode Dose administered Percentage No t mg/kg/POJ Protection (W255 lfil) 4 (WIN) ZUU 5 09201 ISU 4: (W265 Zllll 7027} Hill 71 I274 ll)(l (\(l V Anxiolytic properties The compounds of formula (I) possess augmentative properties when administered by oral means, of the number of performances of mice subjected to a test with four plates.

The results obtained with a certain number of compounds of formula (I) are listed in the following Table Vlll. the dose administered being I00 mg/kg/PC).

Table Vlll (ode No. of Increase in compound No. of

tested performances in test with four plates 70273 6571 70274 lliU /r 70252 55% VI Analgesic properties The compounds of formula (I) administered by oral means in mice, are capable of reducing the number of consecutive painful stretchings produced by the intraperitoneal injection of phenylbenzoquinone.

By way of example, the diminution of the painful stretchings produced by the administration of mg/kg/PO of compound nos. 70256 and 70267 is 40 percent and 45 percent respectively.

As a result of the values shown above and those shown in the following Table X. the difference between the pharmacologically active dose and the lethal dose is sufficiently great to permit the compounds of formula (l) to be utilized in therapeutics.

Vil Hypnotic properties The compounds of formula I administered intraperitoneally to mice reduce the ability of the animal to regain an upright posture when placed on its back (righting reflex).

The results obtained using representative compounds of of the formula (I) are listed in the following Table lX. The table also lists the result obtained using a control compound.

Table lX c/ ll Table IX CONTINUED Compounds tested l'osicit Percentage of mice Ll) (1 Dose losing the righting adminis tered Code No. R mg/kg po ret'les 9 255 -(HH l 65(1 (wtlll mg kg 50% P11. 6 Ztwl H, l 500 75H mgykg 50'? no 6 913 n(' HT 1 MK) Still mgikg 511' po 69 260 iso HT I KKK! (5U mgl'kg 5W2 p.o. w 35*) -CH- x50 40a mg/kg 5|),

-(H=(H. p,o. 69 256 n C4 H I ZUU 145i) mgfkg 5H;

Control H 1 4-01) HUU mg/kg HM Tahlc X R 4 Code No. of Tuiic'll} R compound approaching [.D N) H2 5: 2

tested (mousel (in mg 'kgiPOl R-NH-C N O u o C R 69]} not: 3 (9255 msn 0925s 2200 0 09259 sin I 69260 :uuu wherein "9361 15m R is H or phenvl; 69265 anon m 330, R is alkyl or alken l of l to 4 carbon atoms; and 7025 2min R,, R- and R; are hydrogen. methyl or halogen.

2. A compound according to claim I. in which R is 70273 1300 n-propyl and R R R and R, each is H. W274 34W 3. A compound according to claim I, in which R, R. 'I'tllfih 2mm R l I i 703 7 Qhtlll ant R are hydrogen. and R is selected from the 70237 3500 group consisting of methyl. ethyl. isopropyl. n-propyl.

\7 W253 Jim ally] and n-butyl.

4. A compound according to claim I. in which R R 40 and R are hydrogen. R is phenyl. and R is selected The compounds of formula (I are useful in the treatment of depressions. anxiety. epilepsy and painful contractions and inflammations.

They are administered by oral means in the form of tablets. sugar-coated pills and gelules containing to 40H mg of active ingredient l to 6 times per day) and by rectal means in the form of suppositories containing 50 to 300 mg of active ingredient (l or 2 times per day).

The embodiments of the invention in which an exclusive propert; or privilege is claimed are defined as follows:

l. A compound of the formula from the group consisting of ethyl. isopropfl. n-prop l. allyl and n-hutyl,

5. A compound according to claim I, in which R.. R and R are hydrogen, R is selected from the group con sisting of methyl. chloro and fluoro. and R is selected from the group consisting of ethyl. n-prop l and isoprom 6. A compound according to claim I. in which R and R, are hydrogen. R, is selected from the group consisting of -(l and 3-F. R is selected from the group consisting of chloro and hydrogen. and R is selected from the group consisting of ethyl. n-prop l and isopropyl. with the proviso that when R is RC1. R is chloro. and with the further proviso that when R is R-F. R is h drogen. 

1. A COMPOUND OF THE FORMULA
 2. A compound according to claim 1, in which R is n-propyl and R1, R2, R3 and R4 each is H.
 3. A compound according to claim 1, in which R1, R2, R3 and R4 are hydrogen, and R is selected from the group consisting of methyl, ethyl, isopropyl, n-propyl, allyl and n-butyl.
 4. A compound according to claim 1, in which R1, R2 and R3 are hydrogen, R4 is phenyl, and R is selected from the group consisting of ethyl, isopropyl, n-propyl, allyl and n-butyl.
 5. A compound according to claim 1, in which R1, R3 and R4 are hydrogen, R2 is selected from the group consisting of methyl, chloro and fluoro, and R is selected from the group consisting of ethyl, n-propyl and isopropyl.
 6. A compound according to claim 1, in which R3 and R4 are hydrogen, R1 is selected from the group consisting of 3-Cl and 3-F, R2 is selected from the group consisting of chloro and hydrogen, and R is selected from the group consisting of ethyl, n-propyl and isopropyl, with the proviso that when R1 is 3-Cl, R2 is chloro, and with the further proviso that when R1 is 3-F, R2 is hydrogen. 